def parse(
self,
raw_data: Result[TRawData, Exception],
) -> Result[THostSections, Exception]:
if raw_data.is_error():
return Result.Error(raw_data.error)
try:
return Result.OK(self._parse(raw_data.ok))
except Exception as exc:
return Result.Error(exc)
def test_cmp_ok(self, result):
other = Result.OK(1)
assert result.ok < other.ok
assert result != other
assert result < other
assert result <= other
assert result <= Result.OK(result.ok)
assert other > result
assert other >= result
assert other >= Result.OK(other.ok)
def test_cmp_err(self, result):
other = Result.Error(1)
assert result.error < other.error
assert result != other
assert result < other
assert result <= other
assert result <= Result.Error(result.error)
assert other > result
assert other >= result
assert other >= Result.Error(other.error)
def test_persist_option_populates_cache_info_and_persisted_sections(
self,
hostname,
logger,
monkeypatch,
):
time_time = 1000
time_delta = 50
monkeypatch.setattr(time, "time", lambda: time_time)
raw_data = b"\n".join((
b"<<<section:persist(%i)>>>" % (time_time + time_delta),
b"first line",
b"second line",
))
ahs = AgentParser(hostname, Path(""),
logger).parse(Result.OK(raw_data)).ok
assert ahs.sections == {
SectionName("section"): [["first", "line"], ["second", "line"]]
}
assert ahs.cache_info == {
SectionName("section"): (time_time, time_delta)
}
assert ahs.piggybacked_raw_data == {}
assert ahs.persisted_sections == {
SectionName("section"): (1000, 1050, [["first", "line"],
["second", "line"]]),
}
def patch_io(self, monkeypatch):
class DummyHostSection(ABCHostSections):
def _extend_section(self, section_name, section_content):
pass
for fetcher in (IPMIFetcher, PiggybackFetcher, ProgramFetcher,
SNMPFetcher, TCPFetcher):
monkeypatch.setattr(fetcher, "__enter__", lambda self: self)
monkeypatch.setattr(
fetcher,
"fetch",
lambda self, mode, fetcher=fetcher: {}
if fetcher is SNMPFetcher else b"",
)
monkeypatch.setattr(
ABCSource,
"parse",
lambda self, raw_data: Result.OK(
DummyHostSection(
sections={
SectionName("section_name_%s" % self.hostname):
[["section_content"]]
},
cache_info={},
piggybacked_raw_data={},
persisted_sections="",
), ),
)
def test_eq(self, result, value):
assert (result == value) is False
assert (value == result) is False
assert (result != value) is True
assert (value != result) is True
ok = Result.OK(value)
assert (result == ok) is True
assert (ok == result) is True
assert (result != ok) is False
assert (ok != result) is False
err = Result.Error(value)
assert (result == err) is False
assert (err == result) is False
assert (result != err) is True
assert (err != result) is True
def test_cmp_ok(self, result, value):
other = Result.OK(value)
assert result.error == other.ok
assert result != other
assert result > other
assert result >= other
assert other < result
assert other <= result
def test_attribute_defaults(monkeypatch, ipaddress, mode):
hostname = "testhost"
Scenario().add_host(hostname).apply(monkeypatch)
source = PiggybackSource(hostname, ipaddress, mode=mode)
assert source.hostname == hostname
assert source.ipaddress == ipaddress
assert source.mode is mode
assert source.description.startswith("Process piggyback data from")
assert source.summarize(Result.OK(AgentHostSections())) == (0, "", [])
assert source.id == "piggyback"
def test_cmp_err(self, result, value):
other = Result.Error(value)
assert result.ok == other.error
assert result != other
assert result < other
assert result <= other
assert other > result
assert other >= result
def test_piggyback_populates_piggyback_raw_data(self, hostname, logger,
monkeypatch):
time_time = 1000
monkeypatch.setattr(time, "time", lambda: time_time)
monkeypatch.setattr(config.HostConfig, "check_mk_check_interval", 10)
raw_data = b"\n".join((
b"<<<<piggyback header>>>>", # <- space is OK
b"<<<section>>>",
b"first line",
b"second line",
b"<<<<>>>>", # <- omitting this line makes no difference
b"<<<<piggyback_other>>>>",
b"<<<other_section>>>",
b"first line",
b"second line",
b"<<<<>>>>",
b"<<<<../b:l*a../>>>>",
b"<<<section>>>",
b"first line",
b"<<<</b_l-u/>>>>",
b"<<<section>>>",
b"first line",
))
ahs = AgentParser(hostname, Path(""),
logger).parse(Result.OK(raw_data)).ok
assert ahs.sections == {}
assert ahs.cache_info == {}
assert ahs.piggybacked_raw_data == {
"piggyback_header": [
b"<<<section:cached(1000,900)>>>",
b"first line",
b"second line",
],
"piggyback_other": [
b"<<<other_section:cached(1000,900)>>>",
b"first line",
b"second line",
],
".._b_l_a.._": [
b"<<<section:cached(1000,900)>>>",
b"first line",
],
"_b_l-u_": [
b"<<<section:cached(1000,900)>>>",
b"first line",
],
}
assert ahs.persisted_sections == {}
def test_defaults(self, ipaddress, mode, monkeypatch):
hostname = "testhost"
Scenario().add_host(hostname).apply(monkeypatch)
source = TCPSource(
hostname,
ipaddress,
mode=mode,
)
assert source.summarize(Result.OK(AgentHostSections())) == (
0,
"Version: unknown, OS: unknown",
[],
)
def test_attribute_defaults(mode, monkeypatch):
hostname = "testhost"
Scenario().add_host(hostname).apply(monkeypatch)
host_config = config.get_config_cache().get_host_config(hostname)
ipaddress = ip_lookup.lookup_mgmt_board_ip_address(host_config)
source = IPMISource(hostname, ipaddress, mode=mode)
assert source.hostname == hostname
assert source.ipaddress == ipaddress
assert source.mode is mode
assert source.description == "Management board - IPMI"
assert source.source_type is SourceType.MANAGEMENT
assert source.summarize(Result.OK(AgentHostSections())) == (0, "Version: unknown", [])
assert source.id == "mgmt_ipmi"
assert source.cpu_tracking_id == "mgmt_ipmi"
def parse(self, raw_data: Result[TRawData, Exception]) -> Result[THostSections, Exception]:
try:
host_sections = self._make_parser().parse(raw_data)
if host_sections.is_error():
return host_sections
host_sections.ok.add_persisted_sections(
self.persisted_sections_file_path,
self.use_outdated_persisted_sections,
logger=self._logger,
)
return host_sections
except Exception as exc:
self._logger.log(VERBOSE, "ERROR: %s", exc)
if cmk.utils.debug.enabled():
raise
return Result.Error(exc)
def test_raw_section_populates_sections(self, hostname, logger):
raw_data = b"\n".join((
b"<<<a_section>>>",
b"first line",
b"second line",
b"<<<another_section>>>",
b"first line",
b"second line",
))
ahs = AgentParser(hostname, Path(""),
logger).parse(Result.OK(raw_data)).ok
assert ahs.sections == {
SectionName("a_section"): [["first", "line"], ["second", "line"]],
SectionName("another_section"): [["first", "line"],
["second", "line"]],
}
assert ahs.cache_info == {}
assert ahs.piggybacked_raw_data == {}
assert ahs.persisted_sections == {}
def fetch(self) -> Result[TRawData, Exception]:
try:
with self._make_fetcher() as fetcher:
return Result.OK(fetcher.fetch(self.mode))
except Exception as exc:
return Result.Error(exc)
def result(self, value):
return Result.Error(value)
def test_with_exception(self, source):
assert source.summarize(Result.Error(Exception())) == (3, "(?)", [])
def test_defaults(self, source):
assert source.summarize(Result.OK(AgentHostSections())) == (0,
"Success",
[])
def test_defaults(self, source):
assert source.summarize(Result.OK(
source.default_host_sections)) == (0, "", [])
def result(self, value):
return Result.OK(value)
def test_with_MKTimeout_exception(self, source):
assert source.summarize(Result.Error(MKTimeout())) == (2, "(!!)", [])
def test_with_MKEmptyAgentData_exception(self, source):
assert source.summarize(Result.Error(MKEmptyAgentData())) == (2,
"(!!)",
[])
def check(_, *args, **kwargs):
return Result.OK(AgentHostSections(sections={section_name: [[str(section_name)]]}))
def update_host_sections(
multi_host_sections: MultiHostSections,
nodes: Iterable[Tuple[HostName, Optional[HostAddress],
Sequence[ABCSource]]],
*,
max_cachefile_age: int,
selected_raw_sections: Optional[SelectedRawSections],
host_config: HostConfig,
fetcher_messages: Optional[List[FetcherMessage]] = None,
) -> Sequence[Tuple[ABCSource, Result[ABCHostSections, Exception]]]:
"""Gather ALL host info data for any host (hosts, nodes, clusters) in Check_MK.
Communication errors are not raised through by this functions. All agent related errors are
caught by the source.run() method and saved in it's _exception attribute. The caller should
use source.get_summary_result() to get the state, output and perfdata of the agent excecution
or source.exception to get the exception object.
"""
if fetcher_messages is None:
console.verbose("%s+%s %s\n", tty.yellow, tty.normal,
"Fetching data".upper())
else:
console.verbose("%s+%s %s\n", tty.yellow, tty.normal,
"Parse fetcher results".upper())
# Special agents can produce data for the same check_plugin_name on the same host, in this case
# the section lines need to be extended
result: List[Tuple[ABCSource, Result[ABCHostSections, Exception]]] = []
for hostname, ipaddress, sources in nodes:
for source_index, source in enumerate(sources):
if host_config.nodes is None:
source.selected_raw_sections = selected_raw_sections
else:
source.selected_raw_sections = _make_piggybacked_sections(
host_config)
source.file_cache.max_age = max_cachefile_age
host_sections = multi_host_sections.setdefault(
HostKey(hostname, ipaddress, source.source_type),
source.default_host_sections,
)
if fetcher_messages is None:
# We don't have raw_data yet (from the previously executed fetcher), execute the
# fetcher here.
raw_data = source.fetch()
else:
# The Microcore has handed over results from the previously executed fetcher.
# Extract the raw_data for the source we currently
fetcher_message = fetcher_messages[source_index]
# TODO (ml): Can we somehow verify that this is correct?
#if fetcher_message["fetcher_type"] != source.id:
# raise LookupError("Checker and fetcher missmatch")
# TODO: Handle status != 0
assert fetcher_message.header.status == 0
raw_data = Result.OK(fetcher_message.raw_data())
host_section = source.parse(raw_data)
result.append((source, host_section))
if host_section.is_ok():
host_sections.update(host_section.ok)
# Store piggyback information received from all sources of this host. This
# also implies a removal of piggyback files received during previous calls.
host_sections = multi_host_sections.setdefault(
HostKey(hostname, ipaddress, SourceType.HOST),
AgentHostSections(),
)
cmk.utils.piggyback.store_piggyback_raw_data(
hostname,
host_sections.piggybacked_raw_data,
)
return result
